5340-01-406-7996

Find complete technical information, availability, and procurement data for: 5340-01-406-7996
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-406-7996

Item Name Code

40280

Assigment Date

01/12/1995 (31 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

2b left internal (includes thru thread) thread class, 0.250 inches nominal left internal (includes thru thread) thread length, left-hand left internal (includes thru thread) thread direction, 2a right external thread class, right-hand right external thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a right external
Thread Class: 2b left internal (includes thru thread)
Thread Direction: left-hand left internal (includes thru thread)
Thread Direction: right-hand right external
Thread Length: 0.250 inches nominal left internal (includes thru thread)
Thread Length: 0.120 inches nominal right external
Length: 0.451 inches nominal
Cross-Sectional Shape: hexagon
Width Across Flats: 0.250 inches nominal
Thread Quantity Per Inch: 32 left internal (includes thru thread)
Thread Quantity Per Inch: 32 right external
Nominal Thread Size: 0.164 inches left internal (includes thru thread)
Nominal Thread Size: 0.164 inches right external
Right Projection Diameter: 0.164 inches nominal
Right Projection Length: 0.690 inches nominal
Material: steel comp 303 overall
Surface Treatment: passivate overall
Style Designator: left internal and right external thread
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right external

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
5265832-013	Spacing Threaded Standoff

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5340-01-406-7996?

The FSCG of the NSN 5340-01-406-7996 is 5340

Does NSN 5340-01-406-7996 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5340-01-406-7996 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-406-7996 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-406-7996 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Thu, Jan 12, 1995